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From Tali K <ncherr...@hotmail.com>
Subject Help: Could not obtain block: blk_ Exception
Date Fri, 24 Dec 2010 12:04:35 GMT




Hi All, 
I am getting Could not obtain block: blk_2706642997966533027_4482 file=/user/outputwc425729652_0/part-r-00000
I checked the file is actually there.
 What I should do?
Please help.


 Could not obtain block: blk_2706642997966533027_4482 file=/user/outputwc425729652_0/part-r-00000
    at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.chooseDataNode(DFSClient.java:1812)
    at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.blockSeekTo(DFSClient.java:1638)
    at org.apache.hadoop.hdfs.DFSClient$DFSInputStream.read(DFSClient.java:1767)
    at java.io.DataInputStream.read(DataInputStream.java:132)
    at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
    at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
    at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
    at java.io.InputStreamReader.read(InputStreamReader.java:167)
    at java.io.BufferedReader.fill(BufferedReader.java:136)
    at java.io.BufferedReader.readLine(BufferedReader.java:299)
    at java.io.BufferedReader.readLine(BufferedReader.java:362)
    at speeditup.ClusterByWordCountFSDriver$ClusterBasedOnWordCountMapper.map(ClusterByWordCountFSDriver.java:157)
    at speeditup.ClusterByWordCountFSDriver$ClusterBasedOnWordCountMapper.map(ClusterByWordCountFSDriver.java:1)
    at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
    at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:621)
    at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
    at org.apache.hadoop.mapred.Child.main(Child.java:170)

 		 	   		  
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